/* jQuery plugin themeswitcher
---------------------------------------------------------------------*/
$.fn.themeswitcher = function( settings ) {

	var options = $.extend({
		loadTheme: null,
		initialText: 'Choose Theme',
		width: 150,
		height: 200,
		buttonPreText: 'Theme: ',
		closeOnSelect: true,
		buttonHeight: 14,
		cookieName: 'jquery-ui-theme',
		onOpen: function(){},
		onClose: function(){},
		onSelect: function(){}
	}, settings );

	// markup 
	var button = $([
		'<a href="#" class="jquery-ui-themeswitcher-trigger">'
	,		'<span class="jquery-ui-themeswitcher-icon"></span>'
	,		'<span class="jquery-ui-themeswitcher-title">'
	,			options.initialText
	,		'</span>'
	,	'</a>'
	].join('') );
	
	// TODO: download all the preview images and host locally
	var switcherpane = $([
		'<div class="jquery-ui-themeswitcher"><div id="themeGallery"><ul>'
	,		'<li><a href="/lib/css/themes/ui-lightness/jquery-ui.css">'
	,			'<img src="/lib/css/themeswitcher/theme_30_ui_light.png" alt="UI Lightness" title="UI Lightness" />'
	,			'<span class="themeName">UI lightness</span>'
	,		'</a></li>'
	,		'<li><a href="/lib/css/themes/ui-darkness/jquery-ui.css">'
	,			'<img src="/lib/css/themeswitcher/theme_30_ui_dark.png" alt="UI Darkness" title="UI Darkness" />'
	,			'<span class="themeName">UI darkness</span>'
	,		'</a></li>'
	,		'<li><a href="/lib/css/themes/smoothness/jquery-ui.css">'
	,			'<img src="/lib/css/themeswitcher/theme_30_smoothness.png" alt="Smoothness" title="Smoothness" />'
	,			'<span class="themeName">Smoothness</span>'
	,		'</a></li>'
	,		'<li><a href="/lib/css/themes/start/jquery-ui.css">'
	,			'<img src="/lib/css/themeswitcher/theme_30_start_menu.png" alt="Start" title="Start" />'
	,			'<span class="themeName">Start</span>'
	,		'</a></li>'
	,		'<li><a href="/lib/css/themes/redmond/jquery-ui.css">'
	,			'<img src="/lib/css/themeswitcher/theme_30_windoze.png" alt="Redmond" title="Redmond" />'
	,			'<span class="themeName">Redmond</span>'
	,		'</a></li>'
	,		'<li><a href="/lib/css/themes/sunny/jquery-ui.css">'
	,			'<img src="/lib/css/themeswitcher/theme_30_sunny.png" alt="Sunny" title="Sunny" />'
	,			'<span class="themeName">Sunny</span>'
	,		'</a></li>'
	,		'<li><a href="/lib/css/themes/overcast/jquery-ui.css">'
	,			'<img src="/lib/css/themeswitcher/theme_30_overcast.png" alt="Overcast" title="Overcast" />'
	,			'<span class="themeName">Overcast</span>'
	,		'</a></li>'
	,		'<li><a href="/lib/css/themes/le-frog/jquery-ui.css">'
	,			'<img src="/lib/css/themeswitcher/theme_30_le_frog.png" alt="Le Frog" title="Le Frog" />'
	,			'<span class="themeName">Le Frog</span>'
	,		'</a></li>'
	,		'<li><a href="/lib/css/themes/flick/jquery-ui.css">'
	,			'<img src="/lib/css/themeswitcher/theme_30_flick.png" alt="Flick" title="Flick" />'
	,			'<span class="themeName">Flick</span>'
	,		'</a></li>'
	,		'<li><a href="/lib/css/themes/pepper-grinder/jquery-ui.css">'
	,			'<img src="/lib/css/themeswitcher/theme_30_pepper_grinder.png" alt="Pepper Grinder" title="Pepper Grinder" />'
	,			'<span class="themeName">Pepper Grinder</span>'
	,		'</a></li>'
	,		'<li><a href="/lib/css/themes/eggplant/jquery-ui.css">'
	,			'<img src="/lib/css/themeswitcher/theme_30_eggplant.png" alt="Eggplant" title="Eggplant" />'
	,			'<span class="themeName">Eggplant</span>'
	,		'</a></li>'
	,		'<li><a href="/lib/css/themes/dark-hive/jquery-ui.css">'
	,			'<img src="/lib/css/themeswitcher/theme_30_dark_hive.png" alt="Dark Hive" title="Dark Hive" />'
	,			'<span class="themeName">Dark Hive</span>'
	,		'</a></li>'
	,		'<li><a href="/lib/css/themes/cupertino/jquery-ui.css">'
	,			'<img src="/lib/css/themeswitcher/theme_30_cupertino.png" alt="Cupertino" title="Cupertino" />'
	,			'<span class="themeName">Cupertino</span>'
	,		'</a></li>'
	,		'<li><a href="/lib/css/themes/south-street/jquery-ui.css">'
	,			'<img src="/lib/css/themeswitcher/theme_30_south_street.png" alt="South St" title="South St" />'
	,			'<span class="themeName">South Street</span>'
	,		'</a></li>'
	,		'<li><a href="/lib/css/themes/blitzer/jquery-ui.css">'
	,			'<img src="/lib/css/themeswitcher/theme_30_blitzer.png" alt="Blitzer" title="Blitzer" />'
	,			'<span class="themeName">Blitzer</span>'
	,		'</a></li>'
	,		'<li><a href="/lib/css/themes/humanity/jquery-ui.css">'
	,			'<img src="/lib/css/themeswitcher/theme_30_humanity.png" alt="Humanity" title="Humanity" />'
	,			'<span class="themeName">Humanity</span>'
	,		'</a></li>'
	,		'<li><a href="/lib/css/themes/hot-sneaks/jquery-ui.css">'
	,			'<img src="/lib/css/themeswitcher/theme_30_hot_sneaks.png" alt="Hot Sneaks" title="Hot Sneaks" />'
	,			'<span class="themeName">Hot sneaks</span>'
	,		'</a></li>'
	,		'<li><a href="/lib/css/themes/excite-bike/jquery-ui.css">'
	,			'<img src="/lib/css/themeswitcher/theme_30_excite_bike.png" alt="Excite Bike" title="Excite Bike" />'
	,			'<span class="themeName">Excite Bike</span>'
	,		'</a></li>'
	,		'<li><a href="/lib/css/themes/vader/jquery-ui.css">'
	,			'<img src="/lib/css/themeswitcher/theme_30_black_matte.png" alt="Vader" title="Vader" />'
	,			'<span class="themeName">Vader</span>'
	,		'</a></li>'
	,		'<li><a href="/lib/css/themes/dot-luv/jquery-ui.css">'
	,			'<img src="/lib/css/themeswitcher/theme_30_dot_luv.png" alt="Dot Luv" title="Dot Luv" />'
	,			'<span class="themeName">Dot Luv</span>'
	,		'</a></li>'
	,		'<li><a href="/lib/css/themes/mint-choc/jquery-ui.css">'
	,			'<img src="/lib/css/themeswitcher/theme_30_mint_choco.png" alt="Mint Choc" title="Mint Choc" />'
	,			'<span class="themeName">Mint Choc</span>'
	,		'</a></li>'
	,		'<li><a href="/lib/css/themes/black-tie/jquery-ui.css">'
	,			'<img src="/lib/css/themeswitcher/theme_30_black_tie.png" alt="Black Tie" title="Black Tie" />'
	,			'<span class="themeName">Black Tie</span>'
	,		'</a></li>'
	,		'<li><a href="/lib/css/themes/trontastic/jquery-ui.css">'
	,			'<img src="/lib/css/themeswitcher/theme_30_trontastic.png" alt="Trontastic" title="Trontastic" />'
	,			'<span class="themeName">Trontastic</span>'
	,		'</a></li>'
	,		'<li><a href="/lib/css/themes/swanky-purse/jquery-ui.css">'
	,			'<img src="/lib/css/themeswitcher/theme_30_swanky_purse.png" alt="Swanky Purse" title="Swanky Purse" />'
	,			'<span class="themeName">Swanky Purse</span>'
	,		'</a></li>'
	,	'</ul></div></div>'
	].join('') ).find('div').removeAttr('id');

	//button events
	button.click(function(){
		if ( switcherpane.is(':visible') )
			switcherpane.spHide();
		else
			switcherpane.spShow();
		return false;
	});
	
	//menu events (mouseout didn't work...)
	switcherpane.hover(
		$.noop,
		function(){ if(switcherpane.is(':visible') ){ $(this).spHide(); } }
	);

	//show/hide panel functions
	$.fn.spShow = function(){
		var offset = button.offset();
		$(this)
			.css({
				top:	offset.top + options.buttonHeight + 6
			,	left:	offset.left
			})
			.slideDown(50);
		button.css( button_active );
		options.onOpen();
	}
	$.fn.spHide = function(){
		$(this).slideUp( 50, function(){ options.onClose(); });
		button.css( button_default );
	}
	
		
	/* Theme Loading
	---------------------------------------------------------------------*/
	switcherpane.find('a').click(function(){
		updateCSS( $(this).attr('href') );
		var themeName = $(this).find('span').text();
		button.find('.jquery-ui-themeswitcher-title').text( options.buttonPreText + themeName );
		$.cookie( options.cookieName, themeName );
		options.onSelect();
		if (options.closeOnSelect && switcherpane.is(':visible')){ switcherpane.spHide(); }
		return false;
	});
	
	//function to append a new theme stylesheet with the new style changes
	function updateCSS(locStr){
		var cssLink = $('<link href="'+locStr+'" type="text/css" rel="Stylesheet" class="ui-theme" />');
		$("head").append(cssLink);

		if ( $("link.ui-theme").size() > 3 )
			$("link.ui-theme:first").remove();
	}	
	
	/* Inline CSS 
	---------------------------------------------------------------------*/
	var button_default = {
		fontFamily: 'Trebuchet MS, Verdana, sans-serif',
		fontSize: '11px',
		color: '#666',
		background: '#eee url(/lib/css/themeswitcher/buttonbg.png) 50% 50% repeat-x',
		border: '1px solid #ccc',
		'-moz-border-radius': '6px',
		'-webkit-border-radius': '6px',
		textDecoration: 'none',
		padding: '3px 3px 3px 8px',
		width: options.width - 11,//minus must match left and right padding 
		display: 'block',
		height: options.buttonHeight,
		outline: '0'
	};
	var button_hover = {
		'borderColor':'#bbb',
		'background': '#f0f0f0',
		cursor: 'pointer',
		color: '#444'
	};
	var button_active = {
		color: '#aaa',
		background: '#000',
		border: '1px solid #ccc',
		borderBottom: 0,
		'-moz-border-radius-bottomleft': 0,
		'-webkit-border-bottom-left-radius': 0,
		'-moz-border-radius-bottomright': 0,
		'-webkit-border-bottom-right-radius': 0,
		outline: '0'
	};


	//button css
	button.css(button_default)
		.hover(
			function(){ 
				$(this).css(button_hover); 
			},
			function(){ 
			 if( !switcherpane.is(':animated') && switcherpane.is(':hidden') ){	$(this).css(button_default);  }
			}	
		)
		.find('.jquery-ui-themeswitcher-icon').css({
			float: 'right',
			width: '16px',
			height: '16px',
			background: 'url(/lib/css/themeswitcher/icon_color_arrow.gif) 50% 50% no-repeat'
		});	

	//pane css
	switcherpane
		.css({
			position: 'absolute',
			float: 'left',
			fontFamily: 'Trebuchet MS, Verdana, sans-serif',
			fontSize: '12px',
			background: '#000',
			color: '#fff',
			padding: '8px 3px 3px',
			border: '1px solid #ccc',
			'-moz-border-radius-bottomleft': '6px',
			'-webkit-border-bottom-left-radius': '6px',
			'-moz-border-radius-bottomright': '6px',
			'-webkit-border-bottom-right-radius': '6px',
			borderTop: 0,
			zIndex: 999999,
			width: options.width-6//minus must match left and right padding
		})

		.find('ul').css({
			listStyle: 'none',
			margin: '0',
			padding: '0',
			overflow: 'auto',
			overflowX: 'hidden', // NEW
			height: options.height
		})
		.end()

		.find('li')
		.hover(
			function(){ 
				$(this).css({
					'borderColor':'#555',
					'background': 'url(/lib/css/themeswitcher/menuhoverbg.png) 50% 50% repeat-x',
					cursor: 'pointer'
				}); 
			},
			function(){ 
				$(this).css({
					'borderColor':'#111',
					'background': '#000',
					cursor: 'auto'
				}); 
			}
		)
		.css({
			width: options.width-30,
			height: '',
			padding: '2px',
			margin: '1px',
			border: '1px solid #111',
			'-moz-border-radius': '4px',
			clear: 'left',
			float: 'left'
		})
		.end()

		.find('a').css({
			color: '#aaa',
			textDecoration: 'none',
			float: 'left',
			width: '100%',
			outline: '0'
		})
		.end()

		.find('img').css({
			float: 'left',
			border: '1px solid #333',
			margin: '0 2px'
		})
		.end()

		.find('.themeName').css({
			float: 'left',
			margin: '3px 0'
		})
		.end()
	;
	

	$(this).append( button );
	$('body').append( switcherpane );
	switcherpane.hide();
	if ( $.cookie(options.cookieName) || options.loadTheme ) {
		var themeName = $.cookie(options.cookieName) || options.loadTheme;
		switcherpane.find('a:contains('+ themeName +')').trigger('click');
	}

	return this;
};




/**
 * Cookie plugin
 *
 * Copyright (c) 2006 Klaus Hartl (stilbuero.de)
 * Dual licensed under the MIT and GPL licenses:
 * http://www.opensource.org/licenses/mit-license.php
 * http://www.gnu.org/licenses/gpl.html
 */
$.cookie = $.cookie || function(name, value, options) {
    if (typeof value != 'undefined') { // name and value given, set cookie
        options = options || {};
        if (value === null) {
            value = '';
            options.expires = -1;
        }
        var expires = '';
        if (options.expires && (typeof options.expires == 'number' || options.expires.toUTCString)) {
            var date;
            if (typeof options.expires == 'number') {
                date = new Date();
                date.setTime(date.getTime() + (options.expires * 24 * 60 * 60 * 1000));
            } else {
                date = options.expires;
            }
            expires = '; expires=' + date.toUTCString(); // use expires attribute, max-age is not supported by IE
        }
        // CAUTION: Needed to parenthesize options.path and options.domain
        // in the following expressions, otherwise they evaluate to undefined
        // in the packed version for some reason...
        var path = options.path ? '; path=' + (options.path) : '';
        var domain = options.domain ? '; domain=' + (options.domain) : '';
        var secure = options.secure ? '; secure' : '';
        document.cookie = [name, '=', encodeURIComponent(value), expires, path, domain, secure].join('');
    } else { // only name given, get cookie
        var cookieValue = null;
        if (document.cookie && document.cookie != '') {
            var cookies = document.cookie.split(';');
            for (var i = 0; i < cookies.length; i++) {
                var cookie = jQuery.trim(cookies[i]);
                // Does this cookie string begin with the name we want?
                if (cookie.substring(0, name.length + 1) == (name + '=')) {
                    cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
                    break;
                }
            }
        }
        return cookieValue;
    }
};


/**
 *	addThemeSwitcher
 *
 *	Add themeswitcher tool inside a generated, positioned placeholder
 *
 *	Dependancies: /lib/js/themeswitchertool.js
 */
function addThemeSwitcher ( container, position ) {
	var pos = { top: '10px', right: '10px', zIndex: 10 };
	$('<div id="themeContainer" style="position: absolute; overflow-x: hidden;"></div>')
		.css( $.extend( pos, position ) )
		.appendTo( container || 'body' )
		.themeswitcher()
	;
};

/**
 *	removeUITheme
 *
 *	Remove the cookie set by the UI Themeswitcher to reset a page to default styles
 */
function removeUITheme ( cookieName, removeCookie ) {
	$('link.ui-theme').remove();
	$('.jquery-ui-themeswitcher-title').text( 'Choose Theme' );
	if (removeCookie !== false)
		$.cookie( cookieName || 'jquery-ui-theme', null );
};
